Answer:
Distance in meters D = 167.75 meters
Step-by-step explanation:
Distance covered in 5 seconds is given by:
Distance, D = Speed (S) X Time (T)
Where,
Distance = ?
Speed = 75mph
Time = 5s
Since we are calculating distance in meters, we have to convert 75miles per hour to meters per second
75mph = 75miles/1hr X 1km/0.621miles X 1000m/1km X 1hr/60mins X 1min/60s
= (75X1000) / (0.621X60X60) meter per second
= 75000/2235.6 meter per second
= 33.55 meter per second
∴ Distance D = 33.55 meter per second X 5 seconds
= 167.75 meters
42/4=10.5 pounds in one bushel
10.5/2=5.25≈5 pies
It's possible to make 5 pies with one peck of apples
Answer:
The temperature a t = 0 is 190 °F
The temperature a t = 1 is 100 °F
The temperature a t = 2 is 77.5 °F
It takes 1.5 hours to take the coffee to cool down to 85°F
It takes 2.293 hours to take the coffee to cool down to 75°F
Step-by-step explanation:
We know that the temperature in °F, of a cup of coffee t hours after it is set out to cool is given by the following equation:

a) To find the temperature a t = 0 you need to replace the time in the equation:

b) To find the temperature after 1 hour you need to:

c) To find the temperature after 2 hours you need to:

d) To find the time to take the coffee to cool down
, you need to:






e) To find the time to take the coffee to cool down
, you need to:


Answer:
9 people would be on the elevator when it goes on its last trip
Step-by-step explanation:
24 x 9 = 216
25 x 9 = 225
225 - 216 = 9
So there is an 9 difference